What did napoleon's army find in 1799?

How did the british show bad leadership during the battle of the somme

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

There are no written records of the first migration of humans to the americas? true or false